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Finding the Fourth Proportional to 484.05, 726.38 and 479.95

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Solution

The fourth proportional to 484.05, 726.38 and 479.95 is: 720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.05 : 726.38 = 479.95 : x
  2. Step 2: Convert to fraction form
    484.05/726.38 = 479.95/x
  3. Step 3: Cross multiply
    484.05x = 726.38 × 479.95
  4. Step 4: Simplify right side
    484.05x = 348,626.08
  5. Step 5: Solve for x
    x = 348,626.08/484.05
  6. Step 6: Final answer
    x = 720.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.